NVIC Method

Show NVIC method.

STCW Competence Knowledge, Understanding, and Proficiency

Operate electrical, electronic and control systems

OICEW-B1.1 Basic configuration and operation principles of the following electrical, electronic and control equipment

Preparing, starting, paralleling and changing over generators

Condition Behavior Standard

On a steam vessel of at least 1,000 HP, on a simulator, or in a laboratory,

the candidate plans for and conducts a pre- start-up inspection and starts a steam turbo-generator.

Note 1

A candidate who does not perform this task will receive an endorsement that is not valid for steam vessels.

The candidate takes the following actions, describing them as they are performed:

  1. Inspects alternator for loose cable connections, brush rigging, and loose items that may damage unit during start-up;

  2. Inspects coupling between turbine/reduction gear and alternator for readiness;

  3. Inspects governor unit, reduction gear casing, and bearing housings for indications of lubrication leaks;

  4. Inspects manual over-speed trip for excessive wear;

  5. Determines level of lube-oil in sump and adds lube-oil as necessary;

  6. Manually trips and resets over-speed trip to determine operation without binding;

  7. Inspects auxiliary circulator pump and its piping for leaks and cracks;

  8. Verifies that sea suction and discharge valves are open to auxiliary circulator;

  9. Inspects auxiliary condensate pump and its piping for leaks and cracks;

  10. Verifies that hot well condensate level is visible;

  11. Verifies that suction, discharge, and vent line valves to auxiliary condensate pump are open;

  12. Inspects auxiliary circulator and condensate pump motor controllers for readiness;

  13. Starts auxiliary circulator;

  14. Vents-off condenser heads and observes stabilizing of circulated water pressure;

  15. Starts auxiliary condensate pump;

  16. Adjusts opening of re-circulating valve to maintain visible level of condensate in hot well;

  17. Returns to operating level and applies gland seal steam to turbine rotor;

  18. Admits operating steam to air ejectors, adjusting supply pressure as necessary;

  19. Determines visible level in hot well, adjusting re-circulating valve as necessary;

  20. Starts lube-oil supply to unit when vacuum reaches 18-22 inches (obtain assistance if pump is hand-operated);

  21. Sets throttle valve;

  22. Slowly opens throttle valve, gradually increasing turbine rotating speed;

  23. Allows unit to rotate without load for even warming;

  24. Applies lube-oil and alternator cooler water supply as necessary; and

  25. Takes proper action to prevent safety and pollution violations.

MMA Method

In order to satisfy NVIC 17-14 Task 6.1.C , MMA students must:

  • Successfully complete MMA Assessment OICEW-7-1C Pre-start inspection of steam turbo-generator